Question: Which is not true about a crystallographic unit cell? It has corners with 90 angles. It represents the smallest repeating unit in the crystal. It

Which is not true about a crystallographic unit cell?

It has corners with 90° angles.
It represents the smallest repeating unit in the crystal.
It fills all the space in the crystalline lattice.
It repeats throughout a crystalline structure in three dimensions.
Its dimensions can be measured with X-rays.

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